(19)
(11) EP 1 890 292 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
24.12.2008 Bulletin 2008/52

(43) Date of publication A2:
20.02.2008 Bulletin 2008/08

(21) Application number: 07008461.1

(22) Date of filing: 25.04.2007
(51) International Patent Classification (IPC): 
G11B 20/14(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK RS

(30) Priority: 28.04.2006 JP 2006126318

(71) Applicant: Sony Corporation
Minato-ku Tokyo 108-0075 (JP)

(72) Inventor:
  • Nakagawa, Toshiyuki
    Tokyo 108-0075 (JP)

(74) Representative: Müller - Hoffmann & Partner 
Patentanwälte Innere Wiener Strasse 17
81667 München
81667 München (DE)

   


(54) Modulation apparatus, modulation method, modulation program and modulation-program recording medium


(57) Disclosed herein is a modulation apparatus including: first conversion means for converting a portion included in processed data as a portion matching a first data pattern into a first code pattern in accordance with a first table associating an even/odd-characteristic retaining conversion pattern used as the first data pattern with the first code pattern; second conversion means for converting a portion included in processed data as a portion matching a second data pattern into a second code pattern in accordance with a second table associating an even/odd-characteristic retention violating conversion pattern used as the second data pattern with the second code pattern; and select means for selecting either the first code pattern or the second code pattern, wherein, if a DSV control bit has been inserted into the processed data, a process carried out by the second conversion means to convert the portion into the second code pattern is inhibited.







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